Airdrie manager Ian Murray says his side have battled fitness concerns to come through three games in eight days with maximum points.Dylan Easton's goal in the second half sealed all three points for the Diamonds away to Dumbarton as they maintained their place in third and extended the gap on fourth placed Queen's Park to eight points.It capped off a great eight days for Airdrie in which they have beaten Alloa 3-1 and promotion rivals Queen's 1-0.Murray says his side showed the gritty elements of their game to ensure a vital victory that keeps the pressure on those around them at the top of League One.He said: "It's a great win for us.